footer {
    position: fixed;
    bottom: 0;
    width: 100vw;
    height: 0.83rem;
    display: flex;
    background-color: #fff;
    overflow: hidden;
    z-index:999;
  }
  footer a {
    flex: 1;
    height: 100%;
    font-size: 0.12rem;
    color: #999999;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }
  footer a img {
    width: 0.3rem;
    height: 0.3rem;
  }
  .active {
    color: #e2925f;
  }
  a:focus, a:hover{
    color: #e2925f;
    text-decoration: none;

  }